JP2010006451A - Liquid jetting instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid jetting instrument which is favorable for assembling a pump of a large amount of unit jetting, to a container of a small capacity for using up the content in one time, and reduces to the utmost the size of the exchangeable container. <P>SOLUTION: The liquid jetting instrument comprises: a container body A with a neck part 11 being erected on a cylindrical barrel portion 10; a mouth plug B which is fitted to the neck part 11 to close an opening of the neck part 11 by a press-openable closing wall 22; and a pump D in which a cylinder D<SB>2</SB>is hanged in a supporting cylinder 30 for attachably/detachably fitting a lower portion thereof to an outer periphery of the neck part 11 of the container body and fixing it to the supporting cylinder 30. When the pump D is attached to the container body A by fitting the supporting cylinder 30 to the neck part 11, the closing wall 22 is passed through and opened by a suction pipe 52 hanged from a lower end of the cylinder D<SB>2</SB>to communicate the inside of the container body A with the inside of the pump D, and the cylinder D<SB>2</SB>is located at least above the barrel portion 10 of the container body after fitting the pump. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid ejector, and more particularly, to a liquid ejector having a replacement container body having a small amount of ejection and a small capacity.

  Various liquid ejectors have been proposed in which a pump is attached to the upper end of the container body and the liquid in the container body is ejected by operating the pump. These liquid ejectors are generally disposed of with the pump after the liquid contained in the container has been used up, but have been changed to a form in which the liquid is refilled into the container in consideration of recent waste disposal circumstances. ing. In addition, a liquid ejector has been proposed in which only the container body can be replaced with a replacement container body after the stored liquid is used up in consideration of the characteristics, usage, and the like of the stored liquid (see, for example, Patent Document 1). ).

The liquid ejector described in Patent Document 1 prevents a case body having a bottomed cylindrical shape with an upper end opening, and an outer surface upper portion of a body portion fitted to the case body from slipping out to an upper surface of a case body peripheral wall. A composite container comprising a container body that is detachably mounted by being engaged with each other and that has a mouth neck raised from the upper end of the trunk is provided. The pump is detachably attached to the composite container by a mounting cylinder that is detachably fitted to the outer periphery of the mouth and neck of the container body, and the lower part of the cylinder fixed by the mounting cylinder is suspended at the upper part of the container body, Hangs a pipe for suction. In addition, an ejection head that protrudes upward and downward from the upper end of the cylinder in an upwardly biased state is provided. And the well-known pump mechanism comprised so that the liquid in a container main body might be sucked up by the up-and-down movement of a jet head, and it ejects from the jet outlet of a jet head.
JP 2003-072870 A

  The liquid ejector described in Patent Document 1 is economical because only the container main body needs to be replaced, and the pump and the case body are luxurious and good-looking, and are used repeatedly. Thus, even if the container body is insufficient in strength, not only can the case body be reinforced, but the container body can be protected from external force by the case body.

  Some liquids ejected by these liquid ejectors increase the amount of one ejection. For example, the amount of one ejection in these handy type liquid ejectors is generally about 0.07 cc, but depending on the type of liquid, the amount of one ejection is about 0.6 cc. There is something you need. In addition, some of these liquids with a large amount of ejection at one time have poor stability after opening, and therefore, there are some that want to be used up as much as possible when ejected after opening.

  The present invention has been made in view of such points, and is a combination of a pump with a large amount of ejection at one time and a container with a small capacity so that the contained liquid can be used up once after opening. The present invention proposes a liquid ejector that can be configured as small as possible with a replaceable container body.

  The liquid ejector of the present invention includes a container body, a support cylinder, and a pump.

  The container body is formed of a synthetic resin or the like, and has a form in which a mouth and neck part having a smaller diameter than the body part is raised at the upper end of the cylindrical body part, and contains the liquid therein and communicates with the pump through the support cylinder. It is constituted as follows. The container body may be configured such that the pump is removed together with the support cylinder when the stored liquid runs out, and the liquid is filled to the maximum, but a cartridge type replacement container body may be used. Although it is necessary to select the container body according to the form of the support cylinder, the case where the whole is provided with rigidity, and the case where only a part is provided with rigidity and the others are provided with self-supporting properties are formed as thin as possible. Can be selected. In the former case, the cover tube portion described later is not extended to the support tube, and the support tube and pump are supported only by the container body. In the latter case, the support tube and pump are supported by the cover tube portion. This is a case where it is possible to support.

  A stopper is attached to the upper end of the container body. The mouth plug closes the opening of the mouth and neck by a blocking wall that can be pressed. Various forms can be adopted as the blocking wall capable of pressing opening. For example, a part or all of the blocking wall may be formed to be extremely thin so as to be capable of being pressed and broken, or a slit is formed in the blocking wall. The slits may be opened by pressing. As the form of the slit, various forms can be adopted as long as it can be pressed through by the suction pipe, but it is preferable to provide a plurality of forms radially from the center. In particular, it may be formed in a cross shape. The capacity of the container body is not particularly limited, but a small capacity that can be used once is suitable. The capacity is preferably about 10 cc, for example. However, it is not limited to this.

  The pump is configured by hanging the cylinder in a support cylinder that is detachably fitted to the outer periphery of the container body neck and neck, and fitting the ejection head to the upper end of the stem that protrudes so as to be able to be pushed down from the cylinder. is doing. As the internal mechanism of the pump, a conventionally known mechanism is used. However, in the case of the present invention, one having a larger amount of jetting than a general one is suitably employed because of its structure. For example, in a general hand spray, a single ejection amount is about 0.07 cc, but in the present invention, an ejection amount of about 0.6 cc can be preferably adopted, but the present invention is not limited to this.

  The support cylinder is for mounting the pump on the container body, and is mounted and supported on the container body so that the cylinder of the pump is at least above the body of the container body. This eliminates the need to undesirably increase the capacity of the small capacity container body, and aims to make the container body to be replaced and discarded as small as possible in the internal capacity. The support cylinder may be formed separately from the pump or may be formed integrally with the pump mounting cylinder. In the former case, the pump mounting cap is fitted to the upper end of the support cylinder to integrate the two. In the latter case, it is preferable to integrally form the mounting cap and the support cylinder of the pump. In that case, for example, it can be formed by forming the peripheral wall of the mounting cap long.

  The support tube may extend from the outer surface to the periphery of the container body, and a cover tube portion having the lower surface as a ground surface may be extended. Thereby, the standing stability of the whole liquid ejector can be increased, and the container body can be formed as thin as possible. When the cover tube portion is provided, the container body can be attached and detached more easily by providing means for rotating or pulling the container body when the container body is attached or detached. For example, in the case of a configuration in which the support cylinder is screwed and locked to the container body, the container body may be easily rotated with respect to the support cylinder. In the case of a form that is locked by a locking means such as a means, a means that can be easily pulled out by grasping the container body may be employed.

  In the former case, a recess is formed in the bottom of the container body, a method of providing a knob for rotation in the recess, or a long cut groove into which a finger can be inserted is drilled in the cover tube, and if possible, an annular shape, What is necessary is just to set it as the form which connected the upper and lower sides with the connection part with a small horizontal width | variety. In the latter case, for example, a pair of cut grooves into which a finger can be inserted may be formed in the lower end portion of the cover tube portion so that the cover tube portion can be pulled out.

The first means is configured as follows. That is, a container body A in which a mouth-and-neck portion 11 having a smaller diameter than the body portion 10 is erected on a tubular body portion 10 and a closure wall 22 that is fitted to the mouth-and-neck portion 11 and can be pressed open. a spout B for closing the 11 openings, together with suspended cylinder D ₂ is fixed to the support cylinder 30 to the support tube 30 to fit the bottom removably to the container body opening neck 11 the outer periphery, the cylinder D ₂ A pump D in which an ejection head 62 is fitted to the upper end of a stem 61 projecting so as to be able to be pushed down in an upward biased state, and the pump D is fitted to the container body A by fitting the support cylinder 30 to the neck 11 when, through the opening the closing wall 22 by suction pipe 52 vertically from the cylinder D ₂ lower communicates between the inside of the container body a and pump D in at least the container body torso cylinder D ₂ after pump D attached The configuration is such that it is above the portion 10.

  The second means is configured as follows. That is, in the first means, the support cylinder 30 and the pump D are configured separately, and the pump D can be fitted to the support cylinder 30.

  The third means was configured as follows. That is, in either the first means or the second means, a cover cylinder portion 33 is provided which extends from the support cylinder 30 and hangs around the container body A and has a lower surface as a ground contact surface. It was.

  The fourth means is configured as follows. That is, in the third means, a concave portion 12 having the lower surface of the container body A recessed upward is formed, and a knob projection 13 for rotating the container body is provided in the concave portion 12.

  The fifth means is configured as follows. That is, in any one of the first to fourth means, the blocking wall 22 capable of pressing the opening is the blocking wall 22 having a plurality of slits 23 formed radially from the center.

The sixth means is configured as follows. That is, a container body A ₁ for replacement of the container body A used in the liquid ejector according to claim 1, wherein the container body A has an upper neck portion 11 having a smaller diameter than the body portion 10 at the upper end of the body portion 10. The plug B that is fitted to the mouth / neck portion 11 and closes the opening of the mouth / neck portion 11 by the closing wall 22 capable of pressing and the peripheral wall portion 15 that is detachably fitted to the outer periphery of the mouth / neck portion 11 It is characterized by comprising a cap 14 in which the top wall portion 16 extends from the upper end edge.

  The present invention is suitable for a combination of a pump with a large amount of ejection at one time and a small-capacity container body that can use up the stored liquid once after opening. In this case, there is an advantage that the replaceable container body can be configured as small as possible. Further, even when the container body A is accidentally tilted when the container body A is attached to the pump D, the stored liquid does not spill. In particular, when the amount of the stored liquid is small, there is a possibility that it will be almost lost if it is tilted down, but such inconvenience can be reliably prevented.

  Further, when the support cylinder 30 and the pump D are configured separately and the pump D can be fitted to the support cylinder 30, there is a manufacturing advantage that an existing pump can be used.

When the cover cylinder portion 33 is provided extending from the support cylinder 30 and hanging around the container body A and having the lower surface as the ground contact surface, the standing stability of the liquid ejector can be ensured. Further, even when forming the container body A as much as possible thin it is possible standing, it is also possible to exchange container body A ₁ forms the thinnest to maintain the self-supporting.

  When the concave portion 12 having the lower surface of the container body A recessed upward is formed and a knob projection 13 for rotating the container body is provided in the concave portion 12, the relative rotation of the container body A with respect to the cover cylinder portion 33 is performed. Can be performed smoothly, and the attachment and detachment of the container body A to and from the support cylinder 30 becomes extremely easy.

  When the blocking wall 22 that can be pressed open is a blocking wall 22 having a plurality of slits 23 formed radially from the center, the sealing wall 22 has a sufficient hermeticity when not opened, and a suction pipe 52 when opened. It can be easily opened.

A container body A ₁ for replacement of a container body A used in the liquid ejector according to claim 1, wherein the container body A has a mouth and neck portion 11 having a smaller diameter than the body portion 10 at the upper end of the body portion 10, and a mouth The upper end edge of the peripheral wall portion 15 that is fitted to the neck portion 11 and that is detachably fitted to the outer periphery of the mouth and neck portion 11 and the plug B that closes the opening of the mouth and neck portion 11 by the closing wall 22 capable of pressing and opening. the case in which the replacement vessel body a ₁ consisting of a cap 14 for the extended more top wall 16 has good air-tightness during storage, yet there is an advantage that exchange also easily.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 4 show an example of the liquid ejector 1, and the liquid ejector 1 includes a container body A, a plug B, a support member C, and a pump D.

  FIG. 2 shows a state before the support member C and the pump D are attached to the container body A, and the container body A has a mouth-and-neck portion 11 having a smaller diameter than the bottomed cylindrical body portion 10. In this configuration, a recess 12 having a bottom center recessed upward is formed, and a knob projecting projection 13 for rotating the container body running back and forth in the center of the recess 12 is provided. In addition, the stopper B is a container body in which the mounting cylinder portion 20 is tightly fitted to the inner surface of the mouth neck portion 11 and a flange 21 extending from the upper end edge of the mounting cylinder portion 20 is placed in contact with the neck portion 11. It is attached to A. Further, a closing wall 22 is extended from the inner peripheral lower portion of the mounting cylinder portion 20 to close the upper end opening of the mouth / neck portion 11. The blocking wall 22 is formed with a slit 23 so that a pressing opening is possible. The slit 23 is formed in a cross shape.

In this example, the container A has a small capacity of 10 cc, and is provided with a replacement container A ₁ as shown in FIG. The replacement container body A ₁ has a cap 14 detachably attached to a container body A with a stopper B shown in FIG. The cap 14 is configured by extending the top wall portion 16 from the upper end edge of the peripheral wall portion 15 screwed to the outer periphery of the mouth neck portion 11.

  As shown in FIG. 2, the support member C includes a support cylinder 30 in which a lower inner periphery is screwed onto an outer periphery of the container body neck 11, and a flange-like engagement that abuts and engages the upper surface of the flange 21 of the stopper B. The protrusion 31 is provided so as to protrude from the middle part of the inner periphery in the vertical direction. In addition, a cover cylinder portion 33 is suspended downward from the outer peripheral vertical middle portion via the flange portion 32. The cover cylinder part 33 has a slightly larger diameter at the container body part 10 and hangs down below to the lower end with a diameter slightly larger than the outer periphery of the container body part 10, and the lower surface is configured as a ground plane.

The pump D includes a mounting cap D ₁ , a cylinder D ₂ , an operating member D _{3 and the} like. Mounting the cap D ₁ is a peripheral wall 40 which is screwed together to vertically from top plate 41 back surface to the outer peripheral upper end portion of the support cylinder 30 is provided upright guide cylinder 42 from the top plate 41 top surface.

Cylinder D ₂ is a cylindrical shape having an open upper and lower ends, mounted fitted between the locking cylinder 43 and the peripheral wall 40 a flange 50 projecting from the vertically to the mounting cap top plate 41 back surface to the outer peripheral upper end cap D ₁ is fixed. The lower end of the cylinder D ₂ and vertically the pipe fitting tube 51, are fitted to the upper end of the pipe 52 to the pipe fitting tube 51. Further, there is provided a suction valve 53 to the lower end inside the cylinder D _2.

Actuating member D ₃ is a piston 60 which slides in the cylinder D ₂ by fitting the injection head 62 to the upper end of the stem 61 in tandem in the bottom, and mounted depressible above energized state by the coil spring s A discharge valve 63 is provided in the upper part of the stem 61. Note that the pump D uses a form with a large amount of ejection (for example, 0.6 cc).

  When assembling the container body A and the pump D with the support member C, the pump D is screwed onto the support member C. At that time, the liquid tightness between the upper surface of the support cylinder 30 and the lower surface of the flange 50 is achieved by the packing p. Then, from above the container body A, the pipe 52 is inserted into the container body A while opening the slit 23 at the lower end of the pipe 52, and the lower part of the support cylinder 30 is screwed to the outer periphery of the container body neck portion 11 as shown in FIG. As described above, the support cylinder 30 and the pump D are mounted on the container body A. When the container body A is screwed into the support cylinder 30, for example, the knob protrusion 13 can be grasped and the container body A and the support cylinder 30 can be easily rotated relative to each other.

Liquid ejector 1 described above, pressurizes the liquid in the cylinder D ₂ by depressing the actuating member D _3, are as configured ejected from ejection port 64 of the injection head 62 by opening the discharge valve 63. Further, when the actuating member D ₃ is raised, the discharge valve 63 is closed, the suction valve 53 is opened due to the negative pressure in the cylinder D ₂ , and the liquid in the container A is transferred into the cylinder D ₂ through the pipe 52. It is configured to suck up.

When the liquid in the container body A is used up, the support cylinder 30 is rotated relative to the container body A to unscrew the support cylinder 30 from the neck portion 11. Then, take out the new replacement container body A _1, may be attached to the container body A ₁ for the new exchange in the same manner as described above.

It is a longitudinal cross-sectional view of a liquid ejector. (Example 1) It is a longitudinal cross-sectional view of the decomposition | disassembly state of a liquid ejector. (Example 1) It is a half sectional view of a container for exchange. (Example 1) It is a bottom view of a plug. (Example 1)

Explanation of symbols

1 ... Liquid ejector A ... Container body (A ₁ ... Replacement container body)
10 ... trunk, 11 ... mouth and neck, 12 ... recess, 13 ... picking projection, 14 ... cap, 15 ... peripheral wall,
16 ... top wall B ... plug
20 ... Installation cylinder, 21 ... Flange, 22 ... Blocking wall, 23 ... Slit C ... Support member
30 ... Support cylinder, 31 ... Locking projection, 32 ... Flange part, 33 ... Cover cylinder part D ... Pump
D ₁ … Installation cap
40 ... peripheral wall, 41 ... top plate, 42 ... guide tube, 43 ... locking tube
D ₂ ... Cylinder
50 ... Flange, 51 ... Pipe fitting cylinder, 52 ... Pipe, 53 ... Suction valve
D ₃ ... Actuating member
60 ... piston, 61 ... stem, 62 ... jet head, 63 ... discharge valve,
s ... coil spring, p ... packing

Claims (6)

Opening of the mouth and neck portion 11 by the container body A having a mouth and neck portion 11 having a diameter smaller than that of the body portion 10 on the cylindrical body portion 10 and the closing wall 22 that can be fitted to the mouth and neck portion 11 and can be pressed. a spout B for closing the, together with suspended cylinder D ₂ is fixed to the support cylinder 30 to the support tube 30 to fit the bottom removably to the container body opening neck 11 the outer periphery, with above the cylinder D ₂ A pump D in which an ejection head 62 is fitted to the upper end of a stem 61 projecting so as to be able to be pushed down in a biased state, and when the pump D is fitted to the container body A by fitting the support cylinder 30 to the mouth neck 11 In addition, the suction pipe 52 suspended from the lower end of the cylinder D ₂ is opened through the closing wall 22 so as to communicate the inside of the container body A and the inside of the pump D. After the pump D is mounted, the cylinder D ₂ is at least the container body body 10. A liquid ejector characterized in that it is arranged at a higher position. The liquid ejector according to claim 1, wherein the support cylinder and the pump D are configured separately and the pump D can be fitted to the support cylinder. 3. The liquid ejector according to claim 1, further comprising a cover tube portion 33 extending from the support tube 30 and hanging around the container body A and having a lower surface as a ground contact surface. The liquid ejector according to claim 3, wherein a recess 12 is formed in which the lower surface of the container body A is recessed upward, and a knob projection 13 for rotating the container body is provided in the recess 12. The liquid ejector according to any one of claims 1 to 4, wherein the blocking wall 22 capable of being pressed is a blocking wall 22 having a plurality of slits 23 formed radially from the center. A container body A ₁ for replacement of a container body A used in the liquid ejector according to claim 1, wherein the container body A has a mouth and neck portion 11 having a smaller diameter than the body portion 10 at the upper end of the body portion 10, and a mouth The upper end edge of the peripheral wall portion 15 that is fitted to the neck portion 11 and that is detachably fitted to the outer periphery of the mouth and neck portion 11 and the plug B that closes the opening of the mouth and neck portion 11 by the closing wall 22 capable of pressing and opening. A replacement container body comprising a cap 14 having a further extended top wall portion 16.

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